Cancellation of tasks

Hey @DavidTurner - Our team is seeing a eerily similar issue to this on 8.6.2 and its causing big problems for our cluster with rejected threads and search transport queues.

Would updating to 8.8 potentially fix this?

I see you posted about this exact topic here in December 2022:

Then the follow PR' was merged and mentioned in the 8.8 release notes:

Thank you for any guidance you can provide, this has been a big undertaking troubleshooting this issue . I made a similar post here with details just now which led me to here: